There are two kinds of worms you are talking about, as far as I know. The first is the "woodworm", which some places call the "rice bug", and the other is the "kudzu bug".

(a)? Chai bugs, also known as "wood flowers", "Doo Mi Bugs", Chai bugs about 2-6 cm long, the two heads are vertebrae-shaped, the body is milky white, with small red spots, non-toxic. The Doo Mee Bug is about the same size as a baby silkworm, with a creamy yellow body. In ancient times, people used 'a bucket of rice' to exchange for a worm, so it is called "bucket of rice worms", also known as "birds do not step on the thorns of insects". It has been used in folklore for thousands of years. This insect is also born in the mountainous areas of a kind of long barbed shrubs, it recognizes the tree, from the roots of the tree to drill a small hole, into the tree, specializing in eating the heart of the tree. The Dictionary of Traditional Chinese Medicine records that it is good for digestion, and it is also effective in treating measles and pain in the muscles and bones. It is rich in protein, fat, calcium, phosphorus and iron. Wa people regard it as a precious dish and often use it to treat their honored guests. Generally live in temperate subtropical areas, parasitized in trees and other deciduous trees inside, to nibble on wood as a living, mostly found in the roots of oak trees. (It is the larva of the aspen, scientific name grub). The woodworm is about 2 centimeters long, with two vertebrae-shaped heads, covered with brownish-red markings, and is non-toxic. It is rich in protein, low in fat, nourishing yin and benefiting the liver, and has a great effect on the nutritional supplementation of yin deficiency and night sweating, insomnia, children's "begging teeth" and tuberculosis. This worm after frying, crispy and crisp, dry flavor beautiful, with the best wine, Chai worms "has a characteristic, the general animal cooking will shrink," Chai worms "cooking body shape than the original half-long, so there is a prolonged life and health and beauty.

(b) Kudzu bugs,

Kudzu bugs adult scientific name: purple stem beetle.

The scientific name is Sagra femorata purpurea Lichtenstein, Coleoptera, Leaf Beetle family, Negroid family. Alias Kudzu Purple Stem Beetle, Curved Stem Leaf Beetle.

Hosts Cowpea, Long Cowpea, Knife Bean, Vegetable Bean, Kudzu, Cassia, Mullein, Olea europaea, Potato Pre. Hazardous characteristics The purple stem beetle larvae feed and grow inside the crop stems, stimulating cell proliferation, the larvae are located in the part of the expansion of the insect baby, the appearance of a tumor, a stem family more than infested adult baby, which can be seen on the fecal discharge holes. In severe cases, crop growth and fruiting are affected. Shape characteristics: (1) larvae: grub type. The body is yellowish-white, thick and fat, bent into a half ring. The back of the body has deep wrinkles and is covered with microscopic short bristles. The head is small, reaching forward, with very short antennae and a single eye. Dorsal plate of prothorax strongly ossified, dorsal surface of meso- and post-thorax rugose. Thoracic feet 3 pairs, short and thick. Kudzu worm whole body so white and tender, all fat and protein, very nutritious. It is very nutritious. It is good for digestion and stomach, and it promotes growth when children eat it. Wash it with water, and then fry it like peanuts, first boil the oil until it is slightly hot, and then throw the worms into the frying pan, and then when the worms become golden, add some pepper and salt, and then fry the worms, and then eat them like macadamia nuts, crispy and crunchy, which is definitely a delicacy on earth.

(2) adult beetles: medium to large beetles, body length 20-25MM, body width 8-9.5MM. purple to purple-red, the body surface is hairless, the surface has a glossy surface, the ventral surface of the abdominal joints are more bright, only the male first abdominal joints of the middle of the denser carving points and hairs. The head is densely punctate. Female adults are smaller, with shorter anterior mesopods and more developed hind legs, tipped up to the end edge of the leathery wings, with distinct terminal teeth (mostly two, occasionally three, with the former teeth sharp and prominent).

I hope the above answer should be able to fully satisfy your answer to your question.